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Subject: Mines and mineral resources
Region: Boulder County
Collection: Gov Pub Electronic
Institution
Collection
Format
Subject
Author
4
Geological Survey (U.S.),
2
Lovering, T. S. 1896-1991,
1
Bastin, Edson S. 1878-1953,
1
Colorado Geological Survey
1
Colorado State Metal Mining Fund
1
Goddard, Edwin N. 1904-1997,
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1
Hill, James M. 1884-
1
Johnson, Gordon R.,
1
Pearson, Robert Carl, 1926-
1
Tweto, Ogden, 1912-1983,
1
United States. Bureau of Mines,
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